Added full functionality for CysteineCrossLinkRestraint. That includes the following files: modules/isd/include/CysteineCrossLinkData.h modules/isd/include/CysteineCrossLinkRestraint.h modules/isd/include/CrossLinkData.h modules/isd/include/Weight.h modules/isd/include/WeightMover.h modules/isd/include/WeightRestraint.h modules/isd/src/CysteineCrossLinkData.cpp modules/isd/src/CysteineCrossLinkRestraint.cpp modules/isd/src/CrossLinkData.cpp modules/isd/src/Weight.cpp modules/isd/src/WeightMover.cpp modules/isd/src/WeightRestraint.cpp modules/isd2/data/CrossLinkPMFs.dict modules/isd2/data/CrossLinkPMFs.tgz modules/isd2/data/generate_score_table_CysteineCrosslink.py modules/isd2/data/test_CysteineCrosslink.data.gz modules/isd2/data/transform_CrossLinkPMFs_to_dict.py modules/isd/test/test_Weight.py modules/isd/test/test_mc_WeightMover.py modules/isd/test/test_CysteineCrossLinkRestraint.py